SparkFun Arduino Pro Mini 328 - 5V/16MHz ×1

PCBWay Custom PCB ×1

Custom PCB (JLCPCB) ×1

3.5mm Audio jack ×1

Vibration motor ×1

Slide Switch ×1

Software apps and online services

Hand tools and fabrication machines

Soldering iron (generic)

Plier

Story

Introduction

There are multiple smart accessories such as smart glasses, smartwatches, etc. available in the market. But all of them are built for us. There is a significant lack of technology to aid the physically challenged. I wanted to build something that is useful for the visually challenged people. So I designed low cost smart glass that can be used to help the visually impaired.

This project uses a few ultrasonic distance sensors, an Arduino Pro Mini, an MP3 player module, and some vibration motors.

The circuit board used in this project is designed in the form of a spectacle, which can be worn by a visually impaired person. An Arduino mounted on the spectacle will detect the obstacle with the help of the sensors and notify the user through headphones and vibration motors.

Flash the Pro Mini

Connect the Pro Mini to the computer using FTDI cable.

Select proper COM port.

Select 'Arduino Pro or Pro Mini.'

Click upload

Make sure to flash Arduino before soldering it to PCB. Once all the components are soldered, it will be bit harder to connect the programming header.